Amusement device



3 1928. 1.675584 s. P. AMBROSE AMUSEMENT DEVICE Fild' 00t- 1927 I INVENTOR Sewn-u. Pow/s AMBRosE BY W V ATTORNEYS Patented July 3, 1928. i V

UNITED STATES I 1,675,684 PATENT OFFICE.

sEwnnL rowrs AMBROSE, or van'oouvnngnmnsn coLuiimr-A, cumm ng .1

AMUSE ENT nnvron Application filed October- 4,

up and down, and having-means operable by the users for impartingmovement to the seesaw, as will be more fully shown in the accompanying drawings and described in the following specification, in which I. Fig. 1 is a general view of the invention. Fig. 2 is an enlarged sectional view of'the base mechanism; 5 If r Fig. 3 is a side view of one of the track wheel hangers,

Fig. A is a view of an operating lever.

Fig. 5 is an enlarged sectional view of a modified base mechanism.

In the drawings like characters of reference indicate corresponding parts in each figure.

The numeral 1 indicates generally a base consisting of a pedestal 2 surrounded by an undulating concentric track 3, the purpose of which will hereinafter appear. A recess 1 is formed concentrically in the upper face of the pedestal 2 which is adapted to receive the shaft 5 of a rotary standard 6, the upper end of whichis adapted to be pivotally con-. nected to a bed plate 7 by a pin 8.

A cross arm 9 extends transversely of the rotary standard 6 which is drilled to form a journal for a shaft 10. The shaft 10.ex-' tends beyond the ends of its journal and is fitted adjacent one end with a bevelled pinion 11 having a key 12 orother suitable fastening means and adjacent the opposite end with a similar pinion 13, which however is freely rotatable upon the shaft. The pinions 11 and 13 mesh with a bevelled ring 14 mounted upon or formed integrally with the pedestal 2. To the opposite ends of the shaft 10 are secured a pair of cranks 15 having crank pins 16 and which are preferably set at a right angle to each other.

Mounted upon the bed plate 7 is aplank' or seesaw 17 whichis provided With a pair of track wheel hangers 18 so spaced as to be directly over opposite portions of the track 3. The track wheel hangers-are preferably formed with a plate 19, see Figure 3, having downwardly projecting lugs 20 at. opposite ends, which are aperturedfor the purpose of receiving a pivot pin 21. Upon this pin a 1927. Serial m. 2 24-;o0s.

substantially U-shapedmember 22 is mounted, the extremities of which extend. so close to the plate 19 at 23 as to'permit of a very slight pivotal movement only of "the U- shaped member. Mounted at the base of the member 22 is a wheel 24 which travelsupon the track 3, thus imparting a verticalr reciprocating motion to each end of the plank'17.1 i

Adjacent each end of the plank 117 an operating lever generally indicated by the numeral 25'is pivotally mounted, see Figure 4,'which.leveris formed preferably of a pair of side members 26 'pivotally. connected to theside edgesof the plank as at'27 and connected together by an upper horizontal rod 28 forming a hand grip and a lower horizontal rod 29 forming a treadle. Pivotally connecting one of the side members 26 of each operating lever 25 to one of the cranks 15 is a connecting rod 30. V

In the modified form of base mechanism a ball socket 31 is disposed concentrically within the undulating track 3 and rock ingly mounted in the socket is a standard 32 having a spider 33 consisting of one rotatable shaft 34 and other non-rotating shafts 35, on the ends of which rollers 36 are mounted, one roller on the rotatable shaft being secured thereto so that as the shaft is rotated, traction is obtained between said roller and the track to cause the standard the cranks 39 will impart rotation through the pinion 40 and the gear 41 to the shaft 34 in an opposite direction. A plank 17 is secured to the head of the standard 32. which. is provided with operating levers and connecting rods having operating connection with the cranks 39 as shown in Figure 1. I

Having thus described the several parts of my invention I will now briefly explain its operation.

Two persons assume a seated positon at opposite ends of the plank 17 and face each other, they then -place their feet upon the "respective treadles 29 of the levers 25 and grip the respective hand grips 28. On reciprocatory movement being imparted to the levers by the persons seated uponthe seesaw, a reciprocatory and rotary motion is imparted thereto through the connecting rods, thedrive ring and-their associated parts. I a v What I claim as my invention is:

1. An amusement device comprising a base, having a concentric gear ring, a standard'upon thebasepivotally supporting a seesaw, a shaft carriedby the standard'having a pinion in mesh with said gear ring, and means operable by one of the users for impartingrotation to the shaft and to cause the pinion to travel about the ring whereby rotation is imparted. to the seesaw.

2. An amusement device comprising a base, having a concentric gear ring, a standard uponthe base pivot-ally supporting a seesaw, a shaft carried by the standard having a pinion in mesh with said gear ring, and means operable by one of the users for imparting rotation to the shaft and to cause the pinion to travel about the ring whereby rotation is imparted to the seesaw, and

means as the seesaw is rotated about the base for imparting reciprocation to the seesaw .t .i 3. An amusement device comprising a base, a seesaw, a standardupon the base :pivotally supportingsaid seesaw, a hori fzontally disposed gear ring carried by the base and surrounding the standard in concentric relation thereto, a transversely. ex

by the seesaw and arranged to travel along the undulating surfaces of'the track during rotation of the seesaw. .7 '7

Dated at Vancouver, B. C., this 23rd day of September, 1927. '7 a SEWELL POWVIS AMBROSE. 

